2016459440

素因数分解:

$2^4\times 5^1\times {\mathrm{25205743}}^1$

素因数の和:25205756

約数の個数: 20

約数和(自身を含む): 4688268384

約数和(自身を除く): 2671808944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25205743, 50411486, 100822972, 126028715, 201645944, 252057430, 403291888, 504114860, 1008229720, 2016459440]

約数ペア:

[(1, 2016459440), (2, 1008229720), (4, 504114860), (5, 403291888), (8, 252057430), (10, 201645944), (16, 126028715), (20, 100822972), (40, 50411486), (80, 25205743)]